12000101021 has 2 divisors, whose sum is σ = 12000101022. Its totient is φ = 12000101020.

The previous prime is 12000100999. The next prime is 12000101089. The reversal of 12000101021 is 12010100021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7882953796 + 4117147225 = 88786^2 + 64165^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000101021 - 2¹⁴ = 12000084637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12000101621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000050510 + 6000050511.

It is an arithmetic number, because the mean of its divisors is an integer number (6000050511).

Almost surely, 2^12000101021 is an apocalyptic number.

It is an amenable number.

12000101021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000101021 is an equidigital number, since it uses as much as digits as its factorization.

12000101021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12000101021 its reverse (12010100021), we get a palindrome (24010201042).

The spelling of 12000101021 in words is "twelve billion, one hundred one thousand, twenty-one".